First observation of superconducting flux qubit in the QCT lab

The QCT group has observed the first superconducting flux qubit in the experimental setup at IFAE. This is a milestone for the group. The chip was designed at IFAE and manufactured in Glasgow as part of the AVaQus Collaboration. The group will soon characterize the qubit spectrum and lifetime. The image shows the unequivocal sign of the presence of a superconducting qubit. The horizontal line is the resonance frequency of the resonator that is used to measure the qubit.

David López Núñez delivers a talk to catalan students about quantum technologies

As part of the 2021 BIST Conference and this year’s Setmana de la Ciència, the Barcelona Institute of Science and Technology brought together more than 1400 students from 44 schools across Catalonia to learn about quantum technologies.

Pol Forn-Díaz gives an invited talk at BIST Conference 2021

Pol Forn-Díaz presented a talk and participated in a discussion panel on the 2021 BIST Conference of Quantum technologies: Present and Future. The topic of the discussion was about the future and implementation of quantum computing, in scope of both local and global industry and research. The 2021 BIST Conference ‘Quantum Technologies: Present and Future’ invites its entire community and its many stakeholders and partners to meet, discuss and present the latest developments in Catalonia in the areas of quantum communication, simulations, computing, sensing, and infrastructures.

"How do you make a quantum computer?" at ERN 2021!

As every year, at the end of September, the European Researchers' Night events help to spread fundamental concepts of research’s world to the most generic public possible. This year, our David López-Núñez gave a talk titled “How do you make a quantum computer?". Any other information can be find at this link .

Carla Caro Villanova has won the EUCYS 1st prize!

Carla Caro Villanova earned the first place in the European Union Contest for Young Scientists (EUCYS) 2021, thanks to her project “Formulation and implementation of a support vector machine on D-Wave’s quantum annealer”, held in Salamanca (Spain) on 19th, September. The contest rewards the best young scientific talent that Europe has to offer. Carla conducted her research project co-supervised by David López-Núñez and already won the first prize of the competition XXXII Certamen Jóvenes Investigadores .

New Master and Bachelor students in our group

We welcome Ariadna Gómez del Pulgar, from Universitat de Barcelona, and Shawn Storm, from Technische Universität München, in our group. Ariadna is her Bachelor thesis in superconducting rasonators with granular aluminium, with a particoular stress on fabrication techniques. Shawn is focusing on pulse optimization for qutritts and a universal function approximator using quantum machine learning for its Master thesis. Welcome aboard!

New article about transmission spectra of the driven, dissipative Rabi model in the USC regime

We present theoretical transmission spectra of a strongly driven, damped, flux qubit coupled to a dissipative resonator in the ultrastrong coupling regime. Such a qubit-oscillator system, described within a dissipative Rabi model, constitutes the building block of superconducting circuit QED platforms. The addition of a strong drive allows one to characterize the system properties and study novel phenomena, leading to a better understanding and control of the qubit-oscillator system. In this work, the calculated transmission of a weak probe field quantifies the response of the qubit, in frequency domain, under the influence of the quantized resonator and of the strong microwave drive.

New Post-Doc arrived

This month, Elia Bertoldo started working in our group as post-doc. He completed his bachelor and master in Italy, then he did his PhD at Ludwig Maximilian University (Munich). Welcome aboard, Elia!

XXXII Certamen Jóvenes Investigadores award

High-school student Carla Caro Villanova recently got awarded the first prize of the competition XXXII Certamen Jóvenes Investigadores that is called out annualy by the Spanish Youth Institute (INJUVE). The prize rewards excellence in the scientific projects of Spanish high-school students nationwide. Carla indepdentently conducted her research project co-supervised by David López-Núñez from our group and presented her work with the tile ‘To what extent do quantum annealing computers outperform classical computers?

Latest batch of PhD students arrived

This week the latest batch of newcomers arrived and started working in our group. Hence, we welcome aboard Alba Torras and Luca Cozzolino . Both just recently finished their Master’s and will continue to work on a PhD. Alba studied at UAB and UPC while Luca completed his studies at Università degli Studi di Napoli Federico II.